Wictoe oskab julius andersson



W. 0. J. ANDERSSON.

CALCULATING MACHINE.

APPLICATION FILED APR.9.1918.

' Patented Ju1y15, 1919.

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side facing the pin wheel provided with two WICTOR OSKAB JULIUS ANDEBSSON, OF. MALMb, SWEDEN.

CALCULATING-MACHINE.

Specification of Letters Patent.

Patented July 15, 1919.

Application filed April 9, 1918. Serial No. 227,427.

To all whom it may concern Be it known that I, WICTOR ()sKAR JULIUS ANDERSSON, a subject of the King of Sweden, residing at Malmo, in the county of Malmohus and Kingdom of Sweden, have invented new and useful Improvements in Calculating-Machines, of which the following is a specification, 1

This invention refers to calculating machines of the type wherein adjustable pins in an adjusting mechanism operate the indicating mechanism by means of pinions on the counting wheel shaft. More particularly this invention refers to the adjustable pins in the adjusting mechanism and has for its object to provide simple, reliable and durable means for operating these pins. This invention is applicable on such class of adjusting mechanism, wherein the adjustable pins are cylindrical and pivotably mounted into the adjusting wheel or disk and provided with eccentric arranged projections, which operate the inions on the counting wheel shaft only, i they are into a certain position, but do not impinge said pinions as soon as they have been turned out of the position mentioned. This invention relates most particularly to the means for turning said pins into or out of the operating position.

For this purpose the shafts of the pins are provided each with two lateral slots at right angles to one another and positioned in different planes perpendicularly to one another. 011 the one side of the pin wheel there is positioned the usual adjusting disk, which operates the pins for setting them in their desired position according to the number, which is to be transmitted to the counting wheel. This adjusting disk is on the coaxial cam segments projecting against the pin wheel and displaced in such a way, that the one cam ends at the same radius of the disk as the other cam begins. These two cams are of such a shape, that they can each enter one of the two slots in the shaft of the adjusting pins when rotating the adjusting cam disk about the shaft of the pin wheel. When revolving the cam disk in the one direction, the one cam segment releases the one slot in the pin shaft and, by a further turn of the disk in the same direction, the other cam segment engages with the other slot in the same pin. As this last mentioned slot, however, is perpendicular to the first mentioned slot, the cam cannot enter said slot at once, but the pin at first must be revolved, so that the slot in question comes into proper position for obtaining the cam. For this purpose the cams are so proportioned and arranged, that the end of the entering cam touches the pin shaft eccentrically and thereby causes the pin to pivot until the slot in question arrives into its proper position.

Any extended rotating of the cam disk causes the first mentioned cam segment to release a further pin, and immediately after that, the second cam segment to engage the same pin and .to revolve this in proper position for the cam to enter the slot therein. In this way the desired number of adjusting pins are revolved, so that their eccentric operative projections take in the operative or non operative position and are rigidly held in this position by means of the one cam segment or the other, as the case may be.

In the accompanying drawing Figure 1 represents a side view of the adjusting wheel partly in section,

Fig. 2 is a side view of the adjusting disk,

Fig.3 is an end View of a specimen of the complete adjusting mechanism,

Fig. 4L is .an axial section through said specimen of the complete adjusting mechanism,

Figs. 8 cross sections through the shaft of one adjusting pin showing the two slots with the engaging cams in different operative positions.

Figs. 9 and elevation views of a pin in two operative positions and Fig. .11 an end view of an adjusting pin.

The Figs. 5-11 are in larger scale than the Figs. 14.

Similar letters of reference indicate similar parts throughout all the figures.

The adjusting pins are marked with 1 and the adjusting or pin wheel with 2. 3 is the wheel shaft, 4 the one slot and 5 the other slot in the pins 1, which slots as obvious from Figs. 9 and 10 are positioned perpendicularly to one another as also indicated in the Figs. 5-8 by the dotted lines. Said slots occupy each, some half the cross area of the in shaft. The eccentrically arranged operating projection of the pins is marked with 6. The hub of the pin wheel 2 is marked with 7, and on this hub the adjusting disk 8 is pivotally mounted as shown in Fig. 4. The two cam segments are marked with 9 and 10 respectively. 11 is a grip or tongue projecting from the adjusting disk to allow manipulating of the same. The movement of the adjusting disk is retarded by a spring actuated pin 13, which gears into a toothed segment 12- on the disk 8 for regulating the revolving of the disk so as to easily lock the same, when in proper position for each single pin 1.

The operation of the device is clearly un derstood particularly by means of the Figs. 8. Supposing all the pins 1 are revolved out of gear with the pinions of the calculating wheels (which parts are not shown in the drawing), the pins 1 will then take in the position indicated by the three uppermost specimens in Figs. 1 and 3 as well as the single pin shown in Fig. at, whereby their projections 6 are held in a position perpendicular to the shaft 3. The cam segment 9 now engages the slot 4 in all the pins 1, and the cam segment is out of gear with all the said pins 1. When rotating the disk 8 into the position indicated for instance by Fig. 1 the cam 9 has released the six lowermost pins in Fig. 1 and retains its engagement with only the three uppermost pins, and simultaneously the cam 10 has entered the slots 5 in the six lowermost pins mentioned. As will be obvious from Fig. 5 the cam 10 now fills up the slot 5, so that the pin 1 cannot be pivoted. Fig. 8 shows the same relative position between cam 9 and slot a. lVhen the disk 8 is rotated in such direction, that the cam 10 moves as indicated by the straight arrow in Fig. 6, the end of the cam 10 touches the bottom in the slot 5 eccentrically in relation to the turning axle of the pin shaft 1, so that the pin 1 will be caused to revolve in direction of the curved arrow in same figure. The same result, but in opposite direction, will occur, if the disk 8 is rotated in accordance with the straight arrow in Fig. 7, whereby the end of the cam 9 will cause the pin 1 to revolve in the rear direction comparative to Fig. (3.

Having thus described my said invention and how this is to be performed, what I claim as new and want to protect by Letters Patent is:

1. An adjusting mechanism for calculating machines comprising a pin wheel, adjusting pins rotatably mounted in said wheel, slots in the shank of said pins, the slots in each pin being disposed at rightangles to each other, an adjusting disk mounted at the side of said pin wheel, cam segments in the side of said adjusting disk,

cooperating with the slots in the said adjusting pins and means to rotate said adjusting disk, so that its cam segments are caused to engage and disengage the slots in pin shafts, thereby causing the pins to revolve.

2. An adjusting mechanism for calcu1ating machines, comprising a pin wheel with rotatably mounted pins, two slots in the shank of said pins positioned in different planes perpendicularly to one another, two co-axial cam segments projecting from the side of an adjusting disk and adapted to engage the one cam segment with the one set of slots in the pin shafts and the other cam segment with the other set of slots of the pin shafts in such a manner, that, when revolving the adjusting disk, the one cam segment will enter the one slot in a pin shaft immediately as the other cam segment has released the other slot in the same pin, whereby the first mentioned cam segment will cause the pin to revolve.

In testimony whereof I have atlixed my signature in presence of two witnesses.

WIGTOR OSKAR JULIUS ANDERSSON. lVitnesses EMJL HODIN, ANNA Nrnsanx.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0." 

